About this game

LightsOn turns your real-world activity into a living city.

Every active calorie you burn — walking, running, working out, or just moving through your day — flows straight from Apple Health into your city's battery. Keep it charged and the lights stay on: new residents move in, the streets come alive, and your town grows. Let the battery run dry and the city goes dark — residents pack up and leave.

It's a cozy, idle city builder where YOU are the power plant.

HOW IT WORKS
• Your active energy from Apple Health charges the city automatically — no manual tracking, it just works in the background.
• Lights on → residents arrive and your town thrives.
• Battery empty → blackout, and people start to leave.
• Real workouts earn bonus credits to spend on upgrades.
• Build a factory that produces parts for bigger and better upgrades.
• Your city keeps running while you're away — come back to see how far it grew.

WHY YOU'LL LOVE IT
• A real reason to move: every step and workout has a visible payoff.
• Relaxed, no-pressure idle gameplay — perfect for short bursts.
• A charming isometric city that's entirely yours to grow.
• Clean, dark design that's easy on the eyes.

FREE & PRIVATE
• Completely free — no ads and no in-app purchases.
• No tracking and no data collection — your health data never leaves your device.